After 20 people were infected with Ebola in Nigeria, the country has not seen a new case in 42 days. The World Health Organization has declared the country free of Ebola virus transmission. WHO's Incident Manager for Ebola in Nigeria tells us how they contained the virus.

In America, cigarette smoking seems like it’s on the way out. There are restrictions on where you can smoke, and socially, it’s a downer. To varying degrees, smoking is more taboo worldwide as well. From Australia to Uruguay, cigarettes are in the crosshairs.